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SUMMARY:Critical Aging and Relaxation Dynamics in Long-range Systems - Val
 erio Pagni (ETH Zürich)
DTSTART:20250911T145500Z
DTEND:20250911T150000Z
UID:TALK233356@talks.cam.ac.uk
DESCRIPTION:We study the dynamical scaling of long-range O(N) models after
  a sudden quench to the critical temperature\, using a functional renormal
 ization group approach. This framework allows us to characterize both shor
 t-time aging and long-time relaxation\, and to show that their critical pr
 operties can be tuned by varying the range of the power-law interactions. 
 Our results substantially improve on perturbative predictions\, as demonst
 rated by benchmarks against Monte Carlo simulations and the large-N limit.
  Moreover\, we extend the effective-dimension approach to non-equilibrium 
 settings. Finally\, we highlight a possible thermodynamic advantage of lon
 g-range systems in critical heat engines: by relaxing faster near critical
 ity\, they enable enhanced finite-time performance.
LOCATION:External
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